3rd time is a charm: Fixed my oil burning 09' Prius 1qt per 1000 Hwy miles. I used 2 cans of Berryman B-12. I also cranked the engine with 4 oz B-12 in each Piston for 14 hours. After the Soak I noticed improvements right away. I also did a 3500 mile road trip and only lost 1/2 qt of oil. 10-30wt.
- By - Kaptainkid1